搜索结果: 1-15 共查到“理学 Mesoporous”相关记录20条 . 查询时间(0.046 秒)
Mesoporous CuO/CeO2 bimetal oxides: One-pot synthesis, characterization and their application in catalytic destruction of 1,2-dichlorobenzene
Mesoporous CuO/CeO2 One-pot synthesis Catalytic destruction 1,2-Dichlorobenzene
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2013/12/12
Mesoporous CuO/CeO2 bimetal oxides were synthesized by a one-pot method using a cationic surfactant CTAB as structure directing agent and Cu(NO3)23H2O, Ce(NO3)6H2O and NaOH as the inorganic precurso...
Preparation and properties of mesoporous silica/bismaleimide/diallylbisphenol composites with improved thermal stability, mechanical and dielectric properties
thermosetting resins bismaleimide meosoporous silica dielectric properties structure-property
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2011/12/14
New composites with improved thermal stability, mechanical and dielectric properties were developed, which consist of 2,2!-diallylbisphenol A (DBA)/4,4!-bismaleimidodiphenylmethane (BDM) resin and a n...
Mesoporous Platinum Electrodes for Amperometric Determination of Sugars with Anion Exchange Chromatography
Mesoporous Platinum Electrodes Amperometric Determination Sugars
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2010/9/17
A simple amperometric detection (AD) method based on mesoporous platinum (Pt) electrodes has been developed for the determination of sugars (glucose, fructose, and sucrose) with high-performance anion...
Measurement of the ortho-positronium confinement energy in mesoporous thin films
ortho-positronium mesoporous thin films
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2010/3/15
In this paper, we present measurements of the ortho-positronium emission energy in vacuum from mesoporous films using the time of flight technique. We show evidence of quantum mechanical confinement i...
A Fast-Response pH Optode Based on a Fluoroionophore Immobilized to a Mesoporous Silica Thin Film
A Fast-Response pH Optode a Fluoroionophore Immobilized Mesoporous Silica Thin Film
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2010/9/17
This paper describes the preparation and characterization of an optical pH-sensing device using a H+-responsive fluoroionophore based on boron-dipyrromethene, immobilized to a mesoporous silica thin f...
Methanol dehydration reaction to produce clean diesel alternative dimethylether over mesoporous aluminosilicate-based catalysts
DME aluminosilicate silicotungstic acid methanol dehydration
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2010/4/9
Due to its good burning characteristics and high cetane number, dimethylether (DME) is considered as a highly attractive and clean alternative to diesel fuel. This ether can be produced by methanol de...
Synthesis of Mesoporous Lanthanum Phosphate and Its Use as a Novel Sorbent
mesoporous surfactant lanthanum phosphate metal cation sorption
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2007/12/20
Mesoporous lanthanum phosphate was synthesized by supramolecular self-assembly of cetyltrimethylammonium bromide and lanthanum nitrate following digestion in phosphoric acid. TGA-DTA, XRD and SEM were...
Preparation and Characterization of Ordered TiO2 Photocatalysts: Films and Mesoporous Structures
Preparation Characterization Ordered TiO2 Photocatalysts Mesoporous Structures
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2010/4/16
Two different ordered TiO2 structures were prepared as sol-gel films coated on glass and as mesoporous structures in order to study the effect, in 2-D or in 3-D, of bulk size on photocatalytic activit...
Direct Hydrothermal Synthesis of Palladium-Incorporated Silicate-Structured Mesoporous Catalysts
Mesoporous catalysts MCM-41 Pd hydrothermal synthesis reforming
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2010/4/16
Pd-Si-structured novel mesoporous nanocomposite catalytic materials, having quite high Pd/Si ratios, were synthesized by an acidic direct hydrothermal synthesis route. The nanocomposite catalytic mate...
超低介电常数介孔氧化硅薄膜的制备及其表征（Synthesis of Mesoporous Thin Silica Films with Ultra Low Dielectric Constant）
TEOS蒸汽 甲基化 介孔氧化硅薄膜 超低介电常数
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2010/8/24
研究了以正硅酸乙酯(TEOS)和甲基三乙氧基硅烷(MeSi(OEt)3)为混合硅源，十六烷基三甲基溴化铵(CTAB)为模板剂，采取旋涂技术，在硅晶片表面制备出二氧化硅透明薄膜，再经过正硅酸乙酯(TEOS)蒸汽孔壁强化后采用线性升温焙烧法脱除薄膜孔道内的模板剂，制备出具有超低介电性能的氧化硅薄膜。使用FTIR、XRD和SEM对样品进行了结构表征，并采用阻抗分析仪测量了薄膜的介电常数(k)，纳米硬度计...
Synthesis of mesoporous silica by templating of amphiphilic diblock copolymer under neutral condition
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2007/7/28
专著信息
书名
Synthesis of mesoporous silica by templating of amphiphilic diblock copolymer under neutral condition
语种
英文
撰写或编译
撰写
作者
X. G Cui,W. J Cho,C. S. Ha
第一作者单位
延边大学
出版社
Molecular Crystals and Liquid...
Polypropylene glycol as a swelling agent for the synthesis of mesoporous silica (SBA-15) by amphiphilic block copolymer templating
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2007/7/28
专著信息
书名
Polypropylene glycol as a swelling agent for the synthesis of mesoporous silica (SBA-15) by amphiphilic block copolymer templating
语种
英文
撰写或编译
撰写
作者
X. G Cui,J. H. Ahn,W. C. Zin,W. J Cho,C. S....
Synthesis of mesoporous silica by poly(ethylene glycol) -block-poly(propylene glycol)- block-poly(ethylene glycol)
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2007/7/28
专著信息
书名
Synthesis of mesoporous silica by poly(ethylene glycol) -block-poly(propylene glycol)- block-poly(ethylene glycol)
语种
英文
撰写或编译
撰写
作者
X. G Cui,G. H. Yoo,W. J Cho,C. S. Ha
第一作者单位
延边大学
出版社
Molecu...
KIT-1介孔分子筛的化学修饰及吸附性能（Chemical Modification and Adsorption of the Pure Silica Mesoporous Molecular Sieve KIT-1 ）
介孔分子筛 KIT-1 化学修饰 吸附容量 水热稳定性
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2010/8/25
The pure silica mesoporous molecular sieve (KIT-1) was chemically modified using both organic and inorganic precursors and characterized using FTIR, XRD, MAS NMR, TG-DSC and physical adsorption-desorp...
疏水介孔二氧化硅膜的制备与表征（Preparation and Characterizaion of Hydrophobic Mesoporous Silica Membranes）
介孔氧化硅薄膜 孔结构 疏水性
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2010/8/18
用甲基三乙氧基硅烷(MTES)代替部分正硅酸乙酯(TEOS)作为前驱体，以聚乙烯醚-聚丙烯醚-聚乙烯醚三嵌段共聚物(P123)作有机模板剂，通过共水解缩聚反应制备了甲基修饰的介孔SiO2膜。利用N2吸附、FTIR、29Si MAS NMR以及接触角测量仪对膜的孔结构和疏水性进行了表征。结果表明，修饰后的膜材料具有良好的介孔结构，最可几孔径为4.65 nm，孔体积为0.69 cm3·g-1，比表面积...